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Home >> Honda >> 2001 >> Prelude Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Emission Systems & Sub-Systems >> On-Board Refueling Vapor Recovery (ORVR) Fuel Tank Vapor Control Valve Test (Insight) >> Float Test

Float Test

Ensure fuel tank is less than half full. Remove fuel fill cap to relieve pressure and reinstall cap. Disconnect ORVR fuel tank vapor recirculation hose and connect a vacuum pump/gauge to hose. Plug ORVR fuel tank vapor recirculation line. See Fig 1. Apply vacuum to hose. If vacuum does not hold, float is okay. Go to VALVE TEST . If vacuum holds, replace ORVR Fuel Tank Vapor Control Valve.

Fig 1: ORVR Fuel Tank Vapor Control Valve Float Test (Insight)
G00052459Courtesy of AMERICAN HONDA MOTOR CO., INC.
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